HyperCE - Leveraging Cheat Engine with VT-x Hypervisor for Enhanced Game Analysis

Usage

• compile driver
• load driver or map it with kdmapper
• open CE or software(name contain HyperCE)

中文教程

https://blog.hhhhhi.com/archives/10/

Feature

• bypass protection
• hide process

CE Demo

our HyperCE

Process Hide

Medthod

the kernel function MiReadWriteVirtualMemory call ObReferenceObjectByHandleWithTag to check the privilege. so hooking ObReferenceObjectByHandleWithTag can let Cheat Engine acess any process despite proctection.

__int64 __fastcall MiReadWriteVirtualMemory(
        HANDLE Handle,
        char *a2,
        char *a3,
        size_t a4,
        unsigned __int64 a5,
        ACCESS_MASK DesiredAccess)
{
  __int64 v9; // rsi
  struct _KTHREAD *CurrentThread; // r14
  KPROCESSOR_MODE PreviousMode; // al
  _QWORD *v12; // rbx
  __int64 v13; // rcx
  NTSTATUS v14; // edi
  _KPROCESS *Process; // r10
  PVOID v16; // r14
  char *v17; // r9
  _KPROCESS *v18; // r8
  char *v19; // rdx
  _KPROCESS *v20; // rcx
  NTSTATUS v21; // eax
  int v22; // r10d
  KPROCESSOR_MODE v24; // [rsp+40h] [rbp-48h]
  __int64 v25; // [rsp+48h] [rbp-40h] BYREF
  PVOID Object[2]; // [rsp+50h] [rbp-38h] BYREF

  v9 = 0LL;
  Object[0] = 0LL;
  CurrentThread = KeGetCurrentThread();
  PreviousMode = CurrentThread->PreviousMode;
  v24 = PreviousMode;
  if ( PreviousMode )
  {
    if ( &a2[a4] < a2
      || (unsigned __int64)&a2[a4] > 0x7FFFFFFF0000LL
      || &a3[a4] < a3
      || (unsigned __int64)&a3[a4] > 0x7FFFFFFF0000LL )
    {
      return 3221225477LL;
    }
    v12 = (_QWORD *)a5;
    if ( a5 )
    {
      v13 = a5;
      if ( a5 >= 0x7FFFFFFF0000LL )
        v13 = 0x7FFFFFFF0000LL;
      *(_QWORD *)v13 = *(_QWORD *)v13;
    }
  }
  else
  {
    v12 = (_QWORD *)a5;
  }
  v25 = 0LL;
  v14 = 0;
  if ( a4 )
  {
    v14 = ObReferenceObjectByHandleWithTag(
            Handle,
            DesiredAccess,
            (POBJECT_TYPE)PsProcessType,
            PreviousMode,
            0x6D566D4Du,
            Object,
            0LL);

code: https://github.com/oakboat/HyperCE/blob/5c682a4ee85b2b0d4d3228beb7585946c2081de5/hv/main.cpp#L15

Demo

first, openprocess without read privilege. https://github.com/oakboat/HyperCE/blob/cc6b51a1f94e85ad804a2fd27513176ffdb2efd4/test/test.cpp#L89 Not HyperCE With HyperCE

References

hv